HYDROPHYTE ASSOCIATIONS 



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like bodies (see Figs. 159, 160). These floats are very com- 

 mon among certain of the seaweeds, and are found among 

 higher plants, as the utricularias or bladderworts, which 



m 





Fig. 162. A group of marine seaweeds {Lamina?ias). Note the various habits of the 

 plant body and the root-like holdfasts. — After Rerneb. 



have received their name from the numerous bladders 

 developed in connection with their bodies (see Fig. 161), 

 and which are also put to additional uses. 



